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Understanding mRNA COVID-19 vaccines




Messenger RNA vaccines—also called mRNA vaccines—are likely to be some of the first COVID-19 vaccines authorized for use in the United States. mRNA vaccines are a new type of vaccine to protect against infectious diseases.

They teach our cells how to make a protein—or even just a piece of a protein—that triggers an immune response inside our bodies.

That immune response, which produces antibodies, is what protects us from getting infected if the real virus enters our bodies.


Take a closer look at how COVID-19 mRNA vaccines work!

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